Abstract: A fluid application system includes a pump unit configured to pump a fluid to a fluid applicator. The fluid application system includes a sensor configured to sense a motion made by a user and generate a sensor signal indicative of the sensed motion. The fluid application system also includes a control system configured to identify a gesture based on the sensor signal and control the fluid application system based on the identified gesture.

Abstract: A fluid spraying system includes a fluid applicator having a tip that atomizes a fluid. The fluid spraying system also includes a pump configure to pump the fluid from a fluid source to the tip and a control system. The control system identifies at least one characteristic of the tip or the fluid and communicatively couples to the pump. The control system also controls an operating characteristic of the fluid spraying system based on a characteristic of the tip or the fluid.

Abstract: A spray tip for a fluid applicator includes a stem configured to be inserted into the fluid applicator. The stem includes a stem pre-orifice portion and an insert receiving portion. The spray tip includes a pre-orifice insert having an inlet and an outlet. The pre-orifice insert is disposed within the insert receiving portion and disposed against a rearward shoulder of the stem.

Abstract: An example portable fluid spraying system includes a handheld fluid sprayer. The handheld fluid sprayer includes a fluid reservoir configured to store a fluid, a pump configured to pump the fluid from the fluid reservoir to an outlet of the handheld fluid sprayer and a handle. The handheld fluid sprayer includes a first trigger proximate the handle, configured to control fluid flow to the outlet. The portable fluid spraying system includes a fluid hose having a coupling mechanism configured to removably couple to the handheld fluid sprayer proximate the outlet and a fluid spray gun. The fluid spray gun includes a gun inlet configured to couple to the fluid hose and receive the fluid from the handheld fluid sprayer, a gun outlet configured to expel the fluid in a spray pattern and a second trigger configured to control fluid flow to the gun outlet.

Abstract: A fluid applicator configured to receive a pressurized fluid includes a pressure vessel configured to receive the pressurized fluid from a fluid delivery line. The pressure vessel includes a valve chamber configured to receive a valve assembly, a filter chamber configured to receive a filter assembly, and a fluid delivery line fitting configured to be coupled to the fluid delivery line. The fluid applicator further including a tip assembly coupled to the pressure vessel and configured to atomize the pressurized fluid.

Abstract: A fluid application system includes a pump unit configured to pump a fluid to a fluid applicator. The fluid application system includes a sensor configured to sense a motion made by a user and generate a sensor signal indicative of the sensed motion. The fluid application system also includes a control system configured to identify a gesture based on the sensor signal and control the fluid application system based on the identified gesture.

Abstract: A spray gun for a plural component system is provided. The spray gun includes a first component delivery line and a second component delivery line. The spray gun also includes a nozzle, configured to receive and mix a first component received from the first component delivery line with a second component received from the second component delivery line. The spray gun also includes an air purge system configured to, when the spray gun is in a non-actuated position, purge the nozzle of the first and second components and, when the spray gun is in an actuated position, aid in atomization of the mixture of the first and second components.

Abstract: A modular fluid delivery assembly is provided. The modular fluid delivery assembly comprises a fluid conduit. The modular fluid delivery assembly also comprises an electrical heating element disposed within the fluid conduit. The electrical heating element is configured to provide a heat source within the fluid conduit. The modular fluid delivery assembly also comprises a connection assembly, located proximate an end of the modular fluid delivery assembly, coupled to the heating element and the fluid conduit. The connection assembly is configured to provide a hydraulic coupling to the fluid conduit, and to provide an electronic coupling to the electrical heating element.

Abstract: A mixer for a plural component spray gun is presented. The mixer has a mixer body comprising a mixing chamber with an outlet. The mixer also has a first fluid component inlet, coupled to a first fluid conduit, configured to introduce a first fluid component into the mixing chamber. The mixer also has a second fluid component inlet, coupled to a second fluid conduit, configured to introduce a second fluid component into the mixing chamber. The first and second fluid component inlets are offset with respect to a centerline of the mixing chamber and positioned such that a first fluid flow from the first inlet is directed toward the outlet, and a second fluid flow from the second inlet is directed toward the outlet.

Abstract: A method of identifying a spray tip from a plurality of spray tips based on a selected fluid is presented. The method comprises the step of selecting the fluid. The fluid is characterized by a set of given physical parameters. The method also comprises the step of selecting an application pressure. The application pressure is sufficient to cause atomization of the fluid through the spray tip. The method also comprises the step of selecting the spray tip for the fluid applicator, based on characteristics of the fluid. The spray tip is selected based on an ability to process the fluid. The spray tip is selected such that the fluid has a viscosity on the order of 10 mPa·s in the shear rate range of 104-106 s?1 to ensure a turbulent flow downstream of a pre-orifice.

Abstract: An aerial paint spraying vehicle includes a body and a paint reservoir removably coupled to the body and configured to store paint. The aerial paint spraying vehicle includes a pressure vessel removably coupled to the body and configured to pressurize the paint from the paint reservoir. The aerial paint spraying vehicle includes a paint applicator assembly configured to receive the pressurized paint and expel the pressurized paint through a spray nozzle towards a target surface.

Abstract: An applicator is presented. The applicator comprises a fluidic channel extending from a fluid inlet to a fluid outlet. The applicator also comprises a trigger. The trigger is configured to, when actuated, allow fluid to flow through the fluidic channel. The applicator also comprises an adjustable handle with a frame. The handle comprises a finger rest on a first side of the frame. The handle also comprises a grip on a second side of the frame. The second side is opposite the first side. The grip is coupled to the frame by an adjustment mechanism that, when actuated, is configured to change a distance between the finger rest and the grip.

Abstract: An example fluid applicator device includes an applicator assembly, and a reservoir assembly configured to store a fluid and is rotatable, relative to the applicator assembly, to control a valve mechanism that controls a flow of the fluid from the reservoir assembly to the applicator assembly, wherein the applicator assembly is configured to apply the fluid to a surface.

Abstract: A liquid delivery system is presented. The liquid delivery system comprises a source of fluid coupled to an outlet. The liquid delivery system also includes a hydraulic cylinder coupled to the source of fluid. The hydraulic cylinder has a piston movable between a first limit position and a second limit position during an operational cycle. The hydraulic cylinder is configured to pressurize fluid received from the source of fluid, and deliver the pressurized fluid to the outlet. The liquid delivery system also comprises a rod connected to the piston and extending out of the cylinder. The liquid delivery system also comprises a sensor configured to sense a position of the rod to provide a signal indication of the piston with respect to the first position or the second position. An indication of the sensed position is provided to a controller, and the controller is configured to send a control signal to initiate a normal operation loop based on the sensed position.

Abstract: A spray tip configuration for a low pressure fluid sprayer is presented. The spray tip configuration comprises an inlet orifice configured to receive a fluid and to produce a turbulent flow at a known operating point. The spray tip configuration also comprises an outlet orifice configured to emit the fluid in a spray pattern at a turbulence intensity. The spray tip configuration also comprises a passageway fluidically coupling the inlet orifice to the outlet orifice, with a plurality of portions configured to produce the turbulence intensity at the outlet orifice. The passageway comprises a first portion comprising an expansion chamber configured to provide an expanding cross-section from a first portion first end to a first portion second end. The passageway also comprises a second portion comprising a first hydraulic diameter, wherein the second portion is fluidically coupled, on a second portion first end, to the first portion second end.

Abstract: In one embodiment, a fluid delivery system includes a motor assembly and a fluid pump assembly. The fluid pump assembly is spaced apart from the motor assembly, and at least one of the motor assembly or the fluid pump assembly is movable to change a distance between the motor assembly and the fluid pump assembly. The fluid delivery system includes a flexible linkage that couples the motor assembly to the fluid pump assembly, and is configured to transfer motion from the motor assembly to the fluid pump assembly. Further, the fluid delivery system comprises a linkage tightening mechanism configured to generate a tightening force on the linkage by biasing at least one of the motor assembly or the fluid pump assembly in a direction that increases the distance between the motor assembly and the fluid pump assembly.

Abstract: A finger rest for a liquid applicator is presented. The finger rest comprises a base. The finger rest also comprises an aperture configured to receive a handle of the liquid applicator. The base is configured to rotationally align with a head of the liquid applicator at a junction.